Armor-Piercing Response: It doesn't take much for Wheeljack to pick up on how the other Decepticons don't think much of their current leader. It's pretty easy for him to deflate Starscream's posturing during the climax.
Starscream: Do you not see that you are vastly outnumbered? Wheeljack: I see fellas who might vastly enjoy watchin' me pound some dents into you. Starscream:[flustered] Destroy him!
Badass in Distress: Wheeljack is captured and impersonated. By episode's end, the impostor is exposed and the real Wheeljack is rescued.
Berserk Button: Starscream tries to kill Wheeljack for laughing at the thought of him leading the Decepticons instead of Megatron.
Bluff the Imposter: A suspicious Bulkhead asks "Wheeljack" to tell the story about how they fought together at the Battle at Darkmount Pass. "Wheeljack" tells the story flawlessly, except...
Bulkhead: I wasn't there. I'd already left the Wreckers to join up with Optimus, but you wouldn't know that if all you did was access Wheeljack's public service record.
Boring, but Practical: For what it is worth, Starscream's plan to destroy the Autobot base was remarkably simple and effective: Send in an infiltrator, get him to open the groundbridge with fixed coordinates, and then swarm the base with Decepticon foot troopers. It only failed because there were factors he didn't foresee or know about: 1, The Autobot base was shielded to avoid detection, 2, Bulkhead having known Wheeljack personally enough to know all the stories, 3, the groundbridge was scrambled because of the Scraplets (which he had absolutely no knowledge of), and 4, the fact that Wheeljack got loose because his guard got arrogant and too close. And if it weren't for that last part, Starscream would have won in a matter of moments.
But Now I Must Go: Wheeljack decides not to stay with Team Prime and to continue searching for Autobots out in space.
Can't Kill You, Still Need You: Starscream was about to turn Wheeljack into another Cliffjumper right until Soundwave clutches onto Starscream's arm to prevent this. Starscream agrees that Wheeljack may still be of use.
Continuity Nod: Obviously, the Scraplet attack was fairly recent if Ratchet mentions that the Ground Bridge equipment still shorts out on occasion due to the damage.
Death by Secret Identity: Makeshift gets blown up before he can reveal the location of the Autobot base.
Devil in Plain Sight: Makeshift in disguise was acting weird, had creepy moments (visible to the characters) and had an unhealthy obsession with the location of Autobots' base. Nobody suspects anything (except Bulkhead, who thought that his friend was acting weird).
Dynamic Entry: Wheeljack enters the Autobot base by jumping through the Ground Bridge portal and kicking Makeshift in the back.
Engineered Heroics: Since the Autobots would detect any Decepticon presence at the meeting spot, the disguised Makeshift smacks around some Vehicons in order to sell his masquerade.
The Faceless: The audience never gets a good look at Makeshift's real appearance.
Genre Blindness: "Wheeljack" was just rescued from the Decepticons and his main questions are the location of the base on the map. It's a basic premise for an impostor-plot but nobody realises it (even Bulkhead only thinks that his friend is acting weirdly).
I Warned You: While in captivity, Wheeljack tells Starscream that Bulkhead will inevitably see through any imposter. Exaggerated in that Bulkhead immediately sees through Makeshift's disguise, but everyone else fails to catch on.
Ignored Expert: The Autobots don't listen to Bulkhead saying his old friend isn't acting normal since he hasn't seen Wheeljack in such a long time. Subverted when Bulkhead enacts his successful Bluff the Imposter.
Imposter Forgot One Detail: Part of Bulkhead's Bluff the Imposter, the fake Wheeljack recounts fighting beside Bulkhead at the Battle of Darkmount. Bulkhead says he got all the details right, before pointing out that Bulkhead himself wasn't there: he'd already joined up with Optimus by that time. But the impostor wouldn't have known that if all he had for reference was Wheeljack's service record.
Out-of-Character Alert: Because Bulkhead is Wheeljack's old friend, he near-immediately realised something was wrong with his "friend" but everyone points out, not unreasonably, that Wheeljack might have changed a bit over the long period of time since Bulkhead last saw him. It takes a Bluff the Impostor test to confirm that Bulkhead is correct.
Papa Wolf: Bulkhead is not happy when Makeshift grabs Miko as a hostage.
Bulkhead: Decepticon scum! Let the girl go and face me!
Properly Paranoid: On both ends. Starscream gets impatient when he doesn't hear from Makeshift as soon as he expected out of fear the Autobots will eventually see through his disguise. Ironically only Bulkhead gets suspicious, despite the Autobots warning him Wheeljack might have changed since he last met him.
Race Against the Clock: Starscream acknowledges how Makeshift only has a finite amount of time to learn the location of the Autobot base before someone figures out the deception.
Sketchy Successor: Wheeljack openly laughs when told that Starscream has taken over for Megatron.
Spot the Imposter: Bulkhead is able to see through Makeshift's disguise eventually. When both Wheeljack and Makeshift are together, the others have the sense to just let them fight it out and see what happens, implying that the latter is unable to copy everything his former captor has.
Bulkhead boasts that the Decepticons will wish that Wheeljack never showed up. On the Nemesis, Soundwave has already picked up the communication and identified the new arrival, so Starscream orders Makeshift into action.
With the portal open, Makeshift says it's time to get the real party started, but it's Wheeljack who performs the Dynamic Entry.
Wounded Gazelle Gambit: Wheeljack flails about helplessly in his restraints. He does this to goad the guard into coming close enough to threaten him at gunpoint to knock it off. At the right moment, Wheeljack grabs onto the guard with his legs and shakes him up, correctly anticipating any wild blaster fire will disable the systems powering the restraints.
You Fool!: Starscream says this to Makeshift after he realizes he was tossed through the ground bridge with a bomb attached.
Word of God confirms this is why Makeshift was killed off.